OP, Can yiou confirm that this is the users profile?http://www.blackhatworld.com/blackhat-seo/members/256677-pawel.html
Looks like you might have been scammed by somebody else as that user never signed back in after creating the account.
And surely you wouldn't have done business with them based on that, would you, and if you were gong to deal with that type of user I am sure you took a hefty advance upfront, didn't you?

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